45
Học thuậtThân thiện
Definition
- Adjective: Being five more than forty; the cardinal number following forty-four and preceding forty-six.
Usage
- As a determiner or quantifier: Used to indicate a quantity of forty-five items.
- There are 45 students in the class.
- The recipe requires 45 grams of sugar.
- As a noun (representing the number itself): Used to refer to the numeral or the quantity it represents.
- Multiply nine by five to get 45.
- Her jersey has the number 45 on it.
Advanced Usage
- .45 (pronounced "forty-five" or "point forty-five"): Commonly refers to a .45 caliber firearm, most notably the Colt M1911 pistol.
- The detective carried a .45 for protection.
- 45 (pronounced "forty-five"): Refers to a type of vinyl phonograph record that plays at 45 revolutions per minute (RPM), typically containing a single song.
- He collects classic rock 45s from the 1960s.
Variants and Related Words
- Forty-fifth (45th): The ordinal form, indicating position in a sequence.
- She finished in forty-fifth place.
- XLV: The Roman numeral for 45.
Synonyms
- Forty-five
- Forty plus five
- Nine times five
Related Phrases
- 45 rpm: A standard speed for playing vinyl records.
- Make sure the turntable is set to 45 rpm for this single.
- .45 ACP (Automatic Colt Pistol): A specific type of ammunition cartridge.
- This pistol is chambered for .45 ACP.
Adjective
- being five more than forty